Official document details battery capacity for iPhone 18 Pro and Pro Max
Official certification brings news about the energy of the next iPhones
Apple continues with preparations for the launch of its new high-performance smartphones, and some details are beginning to surface. Recently, the Chinese certification authority 3C was responsible for revealing crucial information regarding the capacity of the batteries that will equip the next devices.
Thanks to a data leak shared by well-known leaker Digital Chat Station on the social network Weibo, expectations regarding the batteries of the iPhone 18 Pro series are now clearer. It is interesting to observe how the Cupertino giant is managing the internal space of its devices to meet the demands of constantly evolving hardware.
On the same topic: Choose your iPhone: Detailed comparison of the 17 and 17 Pro Max for consumers
For those who expected a radical change in the autonomy of cell phones arriving in September, the numbers released indicate a very calculated improvement strategy. The undeniable highlight goes to the Pro Max model, which finally breaks a psychological barrier long awaited by the brand’s fans.
What are the new battery capacities of the iPhone 18 Pro and Pro Max?
One of the main revelations brought by this official certification is the confirmation that the international variants, which include the traditional physical SIM card drawer, will have slightly different energy capacities than the eSIM versions sold exclusively in the United States. This distinction forces Apple to make small engineering adjustments to the internal design of the devices.
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As far as the standard iPhone 18 Pro is concerned, the increase in battery capacity is modest, barely noticeable compared to the previous generation. However, the iPhone 18 Pro Max is positioned as the true protagonist of this leak, presenting a significant advance in its capacity, possibly driven by the high processing demands of the new artificial intelligence resources.
Specific 3C certification data for new iPhones
To avoid confusion with the technical details, the data shared by 3C is quite accurate. The certification demonstrates that Apple seeks to ensure that its larger model does not disappoint users, offering autonomy for intense use throughout the day.
It’s worth noting that Apple traditionally doesn’t disclose these absolute battery figures in its official presentations, preferring to focus on estimated hours of video playback. Fortunately, these regulatory and mandatory certifications offer the detailed transparency that is so valued by the technology community.
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- iPhone 18 Pro (global version with SIM):4,056 mAh, a slight increase of 1.71% compared to the predecessor model.
- iPhone 18 Pro (US eSIM version):4,288 mAh, indicating a marginal improvement of just 0.85%.
- iPhone 18 Pro Max (global version with SIM):5,391 mAh, which represents a notable and very welcome jump of 11.78% compared to the iPhone 17 Pro Max.
- iPhone 18 Pro Max (US eSIM version):5,567 mAh, guaranteeing a robust 9.41% increase in total capacity.
Pro Max model surpasses historic 5000 mAh mark
Seeing Apple incorporate a battery with more than 5000 mAh into a smartphone undoubtedly constitutes a significant milestone for the company’s portfolio. For many years, the brand defended itself exclusively by optimizing iOS software to justify clearly inferior physical capabilities when compared to competitors in the Android universe, which often offered larger batteries.
This more significant increase in the Pro Max model, combined with the excellent energy efficiency expected from the future A20 Pro processor, manufactured with 2 nanometer technology, promises to transform this equipment into a true powerhouse in terms of screen time. Now, we just have to wait for the official presentation in September to understand the real impact that all these new numbers will have on consumers’ daily experience.

















